相关实验视频

Updated: Jun 24, 2025

Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

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每个单位排放的碳点

Yunsheng Xia1, Yanli Xu1

  • 1Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People's Republic of China.

The journal of physical chemistry letters
|June 13, 2024
PubMed
概括

这项研究证实了碳点 (C-dot) 的排放单位模型. 同一个前体的不同C点来源于同一个光发光的多环芳单位.

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相关概念视频

¹³C NMR: ¹H–¹³C Decoupling01:04

¹³C NMR: ¹H–¹³C Decoupling

The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
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